Three-dimensional assembly for motion capture calibration

An system for calibrating cameras in a live action scene, the system comprising:

• a base, wherein the base is configured to removably couple to a camera in the live action scene;
• a plurality of extensions coupled to the base, wherein the plurality of extensions extends outwardly away from the base;
• and
• a plurality of reference points identifiable by a sensor, wherein the reference points are coupled to ends of corresponding extensions of the plurality of extensions, wherein the plurality of extensions positions the plurality of reference points in a three-dimensional arrangement, wherein distances between pairs of reference points are based on one or more aspects of the extensions, and wherein the distances between the pairs of reference points are used to compute reference point data generated from a performance capture system.

A computer-implemented method for calibrating cameras in a live action scene, the method comprising:

• receiving images of the live action scene from a plurality of cameras;
• receiving reference point data generated from a performance capture system, wherein the reference point data is based on a plurality of reference points identifiable by a sensor, wherein the plurality of reference points are coupled to a plurality of extensions coupled to a base, wherein the base is configured to removably couple to a camera in the live action scene, wherein the plurality of extensions extends outwardly away from the base, wherein the reference points are coupled to ends of corresponding extensions of the plurality of extensions, wherein the plurality of extensions positions the plurality of reference points in a three-dimensional arrangement, and wherein distances between pairs of reference points are based on one or more aspects of the extensions;
• and
• computing a location and orientation of one or more cameras in the live action scene based on the reference point data.